DOZ7136 (often simply referred to as Z7136) is a 16-channel digital output terminal board / base of the German HIMA H41q/H51q system, used in conjunction with the F series DO modules, for the output of switch quantity signals in SIL3 safety systems and the connection with on-site actuators. Basic Information

Model: DOZ7136 / Z7136

Brand: HIMA (Black Horse)

Type: 16-channel DO isolation terminal base

Compatible system: H41q / H51q (QMR redundancy)

Compatible module: F3236, F3336, etc. 16-point digital output module

Safety level: SIL3 / AK6 (TÜV certification)

Specification parameters

Channel count: 16 digital outputs (DO)

Signal type: 24VDC dry contact / active output

Single-channel capacity: 24VDC / 0.5A (resistive)

Isolation: Electrical isolation between channels

Connection: Screw terminals (field wiring) + backplane sockets (for I/O module)

Operating voltage: 24VDC (±20%)

Temperature: 0°C ~ +60°C

Protection: IP20 (in cabinet)

Installation: Standard DIN rail Function Description

16-channel DO centralized transfer: F series 16-point DO module → terminal board → field valves, contactors, sound and light alarms and other actuators.

Electrical isolation and protection: Channel-level isolation to suppress EMI; built-in short circuit / overload protection to protect the module and the field equipment.

Redundancy compatibility: Compatible with H41q/H51q's QMR (quad redundancy) architecture, supporting seamless primary/standby switching.

Diagnostic circuit: Cooperates with the module to achieve open circuit / short circuit detection, and faults can be uploaded to the SIS/ESD system.

Typical applications

Petrochemical / Chemical ESD: Emergency shut-off valve, vent valve, pump interlock control

Power plant BMS: Combustion burner ignition / extinguishing control, damper drive

Oil and gas F&G: Fire / gas alarm linkage, exhaust / sprinkler control

Critical equipment safety shutdown: Turbine, compressor interlock output